Answer is: B registering for college courses earlier.
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Answer: They led to larger urban cores that used professional armies to increase their territory and enslave people.
Explanation:
Trade routes to West Africa before European colonization was led by Muslim traders who came and converted people to Islam whilst trading.
This trade created large urban areas that grew so rich from trade that they were able to command and maintain larger armies which they used to increase their territories and conquer neighbouring lands and enslave their people. This was how the Songhai and Mali empires became so powerful.
Answer: An easy way to find an observers latitude is to measure the angle of Polaris. If you were slightly north of the Equator you may be able to see Polaris on the horizon looking north. From London you can see Polaris at approximately 51° north. There is no bright star that represents the Southern Celestial Pole.
Explanation:
Choices 1,3,4, and 6 are correct